MX2013008849A

MX2013008849A - Package with lid sealing system.

Info

Publication number: MX2013008849A
Application number: MX2013008849A
Authority: MX
Inventors: Jeffrey C Minnette; Gail S Becke
Original assignee: Berry Plastics Corp
Priority date: 2011-02-07
Filing date: 2012-02-02
Publication date: 2013-09-06
Also published as: WO2012109087A1; US8998030B2; MX336356B; US20120199599A1; EP2673214B1; CN103347798A; BR112013019954A2; EP2673214A4; EP2673214A1

Abstract

A package includes a container and a lid adapted to mate with a brim of the container. The lid closes a top opening in the container when mounted on the container. In illustrative embodiments, the lid comprises a membrane sheet and a sheet-support ring coupled permanently to the entire perimeter edge of the membrane sheet. The sheet-support ring is configured to mate temporarily with the brim of the container in any suitable way to retain the membrane sheet in mating and sealing engagement with the container brim so that the opening into the product-storage region formed in the container is closed while the lid remains in place on the container.

Description

PACKAGE WITH SYSTEM. SEALANT OF COVER BACKGROUND The present description relates to a package, and particularly to a package including a container and a system for sealing a lid for the container. More particularly, the present disclosure relates to a cover provided with a sealing material and the composition of that sealing material.

SHORT DESCRIPTION A package according to the present disclosure includes a lid adapted to engage with a rim of a container for closing an opening in an interior product storage region formed in the container. In illustrative embodiments, the package is configured to store food in the product storage region formed in the container.

In illustrative embodiments, the cap comprises a membrane sheet and a sheet support ring permanently coupled to the complete perimeter edge de of the membrane sheet. The sheet support ring is configured to temporarily couple with the container rim in any suitable manner for retaining the membrane sheet in mating engagement and sealing with the container rim so that the opening in the product storage region formed in the container is closed while the lid remains in place on the container.

In illustrative embodiments, the membrane sheet closes a central opening structured in the sheet support ring to provide a lid. The membrane sheet is also directly coupled in sealed relationship to the container rim to establish a seal of; fluid between the lid and the rim of the container without having to depend on a separate seal, placed between the lid, and the rim of the container.

In illustrative embodiments, the membrane sheet is a multilayer film comprising an outer bed arranged to permanently engage with the sheet support ring, an inner bed arranged to temporarily couple with the container flange and separate from the flange when the cover it is removed from the container, and a; nucleus interposed between and coupled to the outer and inner beds. The inner bed is made of a sealing material that engages with the rim of the container to establish a fluid seal therebetween. || The lid is recurable in illustrative modalities. The sealing layer included in the inner bed. it can be separated (such as by detachment) from the rim of the container to break the seal between them during the removal of the lid. The sealing layer included in the! The inner bed of the multilayer film can be coupled multiple times with the container flange to re-establish the seal between them during the reclosure of the lid.

In an illustrative embodiment, the core comprises a polypropylene layer and the outer bed comprises an aggressive (i.e., non-releasable) sealant layer that is arranged to permanently engage with the sheet support ring to secure the membrane sheet to the ring of sheet support to form the lid. It is within the scope of the present disclosure to use any suitable means for joining the outer bed and the core to each other and retaining the outer bed and the core in relation coupled to the sheet support ring. It is also within the scope of the present disclosure to use any suitable means for attaching the releasable sealant layer of the inner bed to the core.

Additional characteristics of the. present description will become 'apparent to those skilled in the art in consideration of the illustrative modalities which exemplify the best mode for carrying out the description as it is currently perceived. :: BRIEF DESCRIPTION OF THE DRAWINGS; !, \ The detailed description particularly: · relates to the accompanying figures in which: "Fig. 1 is a perspective view of a package according to the present description and showing that the package includes a container and a lid mounted on the container and made of a multilayer membrane sheet and a surrounding sheet support ring as suggested in Figs. 5-7; Fig. 2 is an enlarged perspective view of the container of Fig. 1 before the lid engages with a flange included in the container to close an opening in a product storage region formed in the container; Fig. 3 is a sectional view taken at the! along line 3-3 of FIG. 1 showing the coupled coupling of the cap on the container rim so that a perimeter portion of the multilayer membrane sheet is trapped between an inner peripheral surface of the support ring sheet and an outer peripheral surface of the rim of the container for retaining the product stored in the product storage region of the container in a sealed chamber when the lid is mounted on the container;;!:;; Fig. 4 is an enlarged partial sectional view taken of a circumferential region of Fig. 3 showing the perimetral portion of the multilayer membrane sheet seated in an annular inner channel formed in a side wall of the support ring. sheet and arranged to end in a perimeter edge formed in an annular lid retaining lug which is coupled to the side wall of the sheet holder ring and arranged to extend inwardly in a lower opening space of outward opening defined by the rim of the container for coupling a surface facing downwardly of the rim of the container for retaining the perimetral portion of the membrane sheet in a stationary position in sealing engagement with the rim of the container; Fig. 5 is a schematic perspective assembly view of the lid of Fig. 1-4 showing the annular sheet support ring below the round membrane sheet; Fig. 6 is an enlarged sectional view taken along line 6-6 of Fig. 5 showing a diagrammatic cross-sectional view of the multilayer membrane sheet included in the lid and showing that the sheet The membrane comprises, in series, from the top to the bottom, an outer bed comprising an aggressive sealant layer adhered to permanently adhere to the sheet support ring, a core comprising a polypropylene layer, and an inner bed that comprises a removable sealant layer adapted to temporarily couple with the container rim; Fig. 7 is an enlarged sectional view taken along line 7-7 of Fig. 5 showing that an upper portion of the side wall and a portion of the upper part of the lid retaining tab ring extending into the sheet support ring cooperate to define an interior perimeter surface that is arranged to engage with an outer bed (e.g., aggressive non-peelable sealant layer) of the multilayer membrane sheet (as is suggested in Fis. 8 and 9) to · retain the membrane sheet permanently in a position mounted on the sheet support ring; Fig. 8 is an enlarged perspective view of a section of the lid of Figs. 1-5 taken from a first point of view;; Fig. 9 is a view similar to Fig. 8 after the lid is mounted on the edge of the container showing the coupled coupling of a perimeter portion of the inner bed of the multilayer membrane sheet and the outer perimeter surface of the container flange; Fig. 10 is an enlarged perspective view of a section of the lid of Figs. 1-5 taken from a second point of view; Fig. 11 is a view similar to Fig. 10 after the lid is mounted on the rim; of the container; Y Figs. 12-14 show a package according to another embodiment of the present disclosure in which the membrane sheet is formed to include a concave central portion of upward opening; Fig. 12 is a perspective view of a package according to the present disclosure and showing that the package includes a container and a lid mounted on the container and made of a multilayer membrane sheet and a foil support ring surrounding; Fig. 13 is a sectional view taken along line 13-13 of Fig. 12 showing the coupled coupling of the lid on the rim of the container so that a perimeter portion of the multilayer membrane sheet an outer perimeter surface of the container flange is trapped between an inner perimeter surface of the sheet support ring for retaining the product stored in the product storage region of the container in a sealed chamber when the lid is mounted on the container; Y :; Fig. 14 is an enlarged partial sectional view taken of a circumferential region of Fig. 13 showing the perimeter portion of the multilayer membrane sheet seated in an annular inner channel formed: in the side support wall of sheet and arranged to finish i in a perimeter edge formed in an annular lid retaining lug which engages the side wall of the sheet support ring and arranged to extend inwardly in a lower opening space towards the outside defined by the rim of the container for coupling a surface facing downwardly of the rim of the container to retain the perimetral portion of the membrane sheet in a stationary position in sealing engagement with the rim of the container.

DETAILED DESCRIPTION A package 10 according to the present disclosure includes a container 12 and a lid 14 configured to engage with the container 12 to "close an opening 27 in an interior product storage region 26 formed in the container 12 as is suggested in FIGS. Fig. 1-4 The lid 14 comprises a foil ring 30 configured to engage with a flange 2 of the container 12 as suggested in Figs 2-4 and "a" membrane diaphragm 32 permanently attached to the container. foil support ring 30 to move with it each time it covers 14 moves relative to the rim of container 24.., In illustrative embodiments, the membrane sheet 32 provides a barrier cover structure and is attached to the surrounding sheet support ring 30 to form the cover 14. It is within the scope of this disclosure to use insert molding techniques to overmold the sheet support ring 30 on the multilayer membrane sheet 32 to form the lid 14. In illustrative embodiments, the membrane sheet 32 is permanently attached to the sheet support ring 30. ||; The sheet support ring 30 provides a ring-cover structure for the multilayer membrane sheet 32. In an illustrative embodiment, the sheet support ring 30 is configured to be temporarily coupled in relation to pressure with a portion, of the flange of the container 24 which is superimposed on a lower cutting space extending outwardly forged ¾h the container 12 so that the container lid "" is removable and reclosable.

A multilayer membrane sheet 32 'comprises an outer bed 321 adapted to carry and display high quality high resolution graphics 326 (as suggested in Fig. 1) and to be coupled with the film support ring 30 as suggested. in Figs. 3 and 4 The membrane sheet 32 also includes an inner bed 323 adapted to mate with the container rim: 24 may set a fluid seal between the same body: that the lid 14 is mounted in the container 12 as suggested in FIG. i Figs. 1- 4, 9 and 10. The multilayer membrane sheet 32 also includes a core 322 interposed between and assembled to the outer and inner beds 321, 323 as suggested in Fig. 6.

The inner bed 323 comprises a releasable sealant layer which in exemplary embodiments is configured to engage with the container rim 24 to establish a sealed connection between the lid 14: and the container 12 when the reclosable lid 14 engages the rim of the container 24 so that the entry of oxygen and other contaminants into the product storage region 26 formed in the container 12 is blocked while the lid 14 engages the container 12. The lid, 14 can be removed from container 12 and reclosed in one, repeatedly by a consumer to close the opening! 27 in the indoor product storage region 26 urinated in the container 12 each time the lid 14 is coupled to the container 12. ', In a container filling process according to the present disclosure, a product 25 (for example food) is deposited in the interior product storage region 26 formed in the container 12. Then the lid 14 is mounted in the container 12. the container 12 for closing an opening 27 in the product storage region 26 as suggested in Fig. 2 and for causing the layer; Removable sealant established by the inner bed 323 in the membrane sheet 32 engages with the flange 2"'of the II container 12 as suggested in Figs. 1, 3, 4, 9 and 11. Then, for example, the peelable sealant layer established by the inner bed 323 is attached to the rim of the container 24 using heat applied to the inner bed 323 through the outer bed 321 and the core 322 or other suitable means. It is within the scope of the present disclosure to couple the inner bed 323 of the membrane sheet 32 to the rim of the container 24 through heat applied by conduction or transmission of ultrasonic or electromagnetic energy. ....; In illustrative embodiments, the sheet support ring 30 has an endless (e.g., round, ring, square, oblong, etc.) edge shaped to engage with an accompanying container 12. The sheet support ring 30 can be thermoformed or otherwise molded from a suitable plastic material. Suitable materials include polypropylene (PP) or polyethylene. high density (HDPE). The sheet support ring 30 can also be made of polyethylene terephthalate (PET) or crystallized polyethylene terephthalate (CPET) to improve the barrier properties. The sheet support ring 30 can also be made using a material co-extruded with barrier polymers such as EVOH or PVdC in a central layer: In illustrative embodiments, the multilayer membrane sheet 32 can be produced using a coextruded film or sheet product comprising, for example, PP or HDPE. The membrane sheet 32 may also include one or more barrier layers such as EVOH, NYLON or PVdC, tie layers and a sealant layer. The sealant layer may comprise LDPE or metallized LLDPE, PP-based sealant, PP and polybutene mixtures, as well as EMA and EVA-based sealants.

It is unnecessary to attach a separate thin film or closure sheet to the container of the filling line after the container 12 has been filled and before the cover 14 is mounted on the container 12 when a cover 14 is used in accordance with the present disclosure due, in part, to the provision of a peelable sealant layer 323 in the lid 14 described herein. The cost of packaging and complexity in this way minimized and the customer is provided with a user-friendly product that is characterized by sustainability.; A package according to the present description is very suitable for use in hot filled, non-barren containers. It can also be used 'in retortable, barrier containers. Sustainability is increased because the lid is made of similar materials: without the inclusion of metal rings and other non-plastic materials in the illustrative modalities. ',' '.i'.

A package 10 according to the. present description includes a container 12 and a lid 14 c'fcjmb is suggested in Figs. 1-4. The container 12 is formed "for i3 :::; including a product storage region 26 and a rim 24 bordering an opening 27 in the storage region of the product 26. The lid 14 is adapted to engage with the rim 24 of the container 12 to close the opening 27 in the storage region of product 26 formed in container 12 as suggested in Fig. 3.

The cover 14 includes a sheet support ring 30 and a membrane sheet 32 as suggested in; the;;,; Figs. 4-7. The membrane sheet 32 is permanently attached, nt | e to the sheet support ring 30 to move with it. same in relation to the container 12 as is suggested in Fig. 2. '. ' The sheet support ring 30 is configured to engage with the rim 24 of the container 12 when the lid 14 is mounted in the container 12 to extend around the opening 27 in the product storage region 26 as suggested in FIGS. Figs. 1-4. The sheet metal ring 30 is also configured to include an inward facing wall 34W arranged to face "" toward the rim 24 of the container 12 as suggested in the drawings. i 'igs. 7-9.;;;! L | The membrane sheet 32 has an outer surface 3210 permanently coupled to the sheet support ring 30 to form the lid 14 as suggested by e! Ft; Figs. 4, 8 and 10. Membrane sheet 32 also includes; an interior surface 3231 configured to provide a means for temporarily and repeatedly engaging the rim 24 of the container 12 to close the opening 27 in the product storage region 26 and establish a sealed connection between the membrane sheet 32 and the rim; 24 of the container 12 each time the sheet holder ring 30 of the lid 14 engages the rim 24 of the container 12 so that any product 25 stored in the product storage chamber 26 is retained in a sealed chamber 100 defined - by the container 12 and the lid 14 as suggested in Figs. 1 and 3.

The membrane sheet 32 includes a perimeter edge 32E arranged to extend between the outer and inner surface 3210, 3231 and to engage with an annular rim support surface 34S included ['? the sheet support ring 30 as suggested in Figs. 6-8. The annular rim bearing surface 34S has: a frustoconical shape in an illustrative embodiment as is suggested in Fig. 7. The perimeter edge 32E of the membrane sheet 32 is permanently attached to the annular support surface 34S of the sheet support ring 30 as suggested in Figs. 8 and 10. ..... ·, The sheet support ring 30 includes an outer surface 30E facing away from the edge 24 of the container 12 and an inner surface 301 facing towards the rim 24 of the container 12 and located between the outer surface 30E and the rim 24 of the container 12 as it is suggested in Figs. 3, 4, 9 and 11. The inner surface 301 includes an inward facing wall 34W and the annular edge supporting surface 34S. The facing wall of inside 34 has a concave shape as suggested in Fig. 7.

The outer surface 3210 of the membrane sheet 32 includes a central portion 31 and an endless portion 33 as suggested in Figs. 5 and 6. The central portion 31 is arranged to be above the opening 27 in the product storage region 26 when the lid 14 is mounted on the container 12 as suggested in Figs. 4 and 8-11. The endless portion 33 engages and arranges to encircle the central portion 31 and terminate at the perimeter edge 32E as suggested in Fig. 6. The endless portion 33 of the outer surface 3210; of the membrane sheet 32 has a shape that is convex in cross section and is arranged to mate with the facing wall 34W of the sheet support ring 30 as suggested in Figs. 4, 8 and 10. The central portion 31 is round and the endless portion 32 is in the form of a ring in an illustrative embodiment as is suggested. in Fig. 5. The facing wall 34W of the sheet support ring 30 has an annular and concave shape as suggested in Figs. 5 and 7. The inwardly facing wall 34W is formed to define an annular inner channel 34C with opening towards the rim 24 of the container 12 and receiving the endless portion 33 of the outer surface 3210 of the membrane sheet 32 in the same as is suggested in Figs. 8 and 10.

The sheet support ring 30 includes a top surface 30T arranged to be above the edge 24 of the container 12 when the lid 14 is mounted on the container 12 as suggested in Figs. 4 and 8-11. The outer surface 3210 of the central portion 31 is arranged to be in a space provided in the upper surface 30T and the inward facing wall 34W of the sheet support ring 30 as suggested in Figs. 8 and 9.

The sheet support ring 30 includes an annular band 30B having an upper surface 30T; and an annular cap retaining lug 30L attached to the annular band 30B at a point below the upper surface 30T as suggested in Figs. . 7-9. The annular lid retaining lug 30L is arranged to meet, below the rim 24 of the container 12 when the lid 14 is mounted on the container 12 to provide a means for covering a section of the membrane sheet 32 between the retention gap of the container. ring cap 30L and flange 24 of container 12 to block removal of cover 14 from a position mounted on container 12 as suggested in Figs. 4 and 9-11. The central portion 31 of the outer surface 3210 of the membrane sheet 32 lies below the upper surface 30T of the annular band 30B and above the annular stage retaining lug 30L.

The annular band 30B is formed to include an inward facing wall 34W formed to define an annular inner channel 34C and permanently engage with the outer surface 3210 of the membrane sheet. 32, when the perimeter edge 32E of the membrane sheet 32 engages the annular edge supporting surface 34S of the sheet support ring 30 as suggested in FIGS. 7-9. The inwardly facing wall 34W is ring-shaped and arcuate around a circumference thereof in a direction radically outwardly away from a vertical central axis 10A passing through the cover 14 and the receiving 12. The supporting surface of annular rim 34S j tie'jxe; a frusto-conical shape as suggested in Fig. 7. |:; ::: The membrane sheet 32 is a multilayer component comprising an outer bed, 321 | which provides the outer surface 3210, an inner bed 323 that provides the inner surface 3231, and a "core 322 interposed between and coupled to the outer beds. interior 321, 323. Each of the outer bed, inner core and bed 321-323 is made of a different material in an illustrative embodiment.

The membrane sheet 32 includes a central plate 32P and an outer flange 32R as suggested in Figs. 8 and 9. The central plate 32P is arranged to mate with the edge 24 of the container 12 and close the opening 27 in the product storage region 26 when the lid 14 is mounted on the container 12. The outer rim 32R engages and it is arranged to extend around the central plate 32P. The outer flange 32R has a curved shape. The outer surface 3210 of the outer bed 321 has a convex shape. The inner surface 3231 of the inner bed 323 has a concave shape. The central plate 32P is round and the flange 32R is in the form of a ring. The outer surface 3210 of the central plate 32P is located below the upper surface 30T of the annular band 32B and above the annular retaining tab 30L.

The sheet support ring 30 can; have any rigid or semi-rigid character or any! suitable round or non-round shape according to the present description. The sheet support ring 30 includes a lid retention tab 30L or any; coupling method or coupling suitable for coupling: with the flange of the container 24 during a capping process "for mounting the lid 14 on the container 12 and also during a reclosure process of the repeated lid carried out; consumers after the lid 14 is removed the first time to open the package 10. The sheet support ring 30 also provides a structure for the consumer to push against, during the closing process of the lid. Sheet 30 is made of a material characterized by high temperature stability in illustrative embodiments.

The membrane sheet 32 is a multilayer film that is bonded to the support ring 30 during an insert molding process in an illustrative embodiment. An aggressive bond is established to permanently attach the membrane sheet 32 to the sheet support ring 30. ::: The membrane sheet 32 is hermetically stretched to engage with the container flange 24 each time the lid 14 is mounted on the container 12 in illustrative ways. The membrane sheet 32 functions to prevent the rim of the container 24 free of contaminants during capping and re-closing of the lid. ::! The membrane sheet 32 is flexible and configured to move, deform and conform in response to: changes in pressure in the sealed chamber 100 formed;;, in the package 10. The membrane sheet 32 is removable to facilitate uncoupling of the rim of the container 24 during the removal of the lid 14 of the container 12.

The membrane sheet 32 is made of a material characterized by rigidity, high temperature stability, high puncture resistance, and high explosion resistance. The membrane sheet 32 provides a barrier to a fluid material such as liquid, oxygen, moisture and solids.

It is within the scope of the present disclosure to attach the membrane sheet 32 to the sheet support ring 30 during a ring molding process (label in the mold, IML technology). The membrane sheet 32 is formable during a molding or capping process using heat and pressure.

It is within the scope of the present description to configure the sheet of. membrane 32 to provide one or more of the following evident indicators of tampering: (1) evidence of tampering through the tactile sensation of resistance as it is removed in lid 14 of the container; (2) evidence of alteration through discoloration due to delamination of the inner bed 323 which provides the peelable sealant layer; (3) evidence of alteration through discoloration: due to permanent stretching / deformation of one or more of the; layers 321, 322, 323.

In illustrative embodiments, the multi-layer membrane sheet 32 is permanently bonded to the sheet support ring 30 through the adhesion of the material. The film comprising the membrane sheet 32 is formed, for example, during an insert molding process. This encapsulates the outer edge 32R forming a smooth surface and forming a mechanical union. The sheet support ring 30 is higher than the membrane sheet 32 as it is suggested in the drawings to pull the membrane sheet 32 tightly while being capped and sealed to accelerate the bonding of the film sealant layer 323 to the flange of the container 24 and to stretch all the layers 321-323 through the rim of the container 24.

A package 110 according to another embodiment of the description is illustrated in Figs. 12-14. The package 110 includes a container 12 and a lid 114 comprising a sheet support ring 30 and a membrane sheet 132. The sheet of the membrane 132 is formed to include a concave central portion 132C encircled by the rim of the container 24.

Claims

1. A package, characterized in that it comprises a container formed to include a product storage region and a skirt bordering an opening in the product storage region and a lid adapted to be coupled with the container rim to close the opening in the product storage region formed in the container, the lid including a sheet support ring and a membrane lamp and wherein the support ring The sheet is configured to mate with the rim of the container, when the lid is traced over the container to be extendable around the opening in the product storage region and to include a facing wall haqia in arranged to face towards the rim of the container and the membrane sheet has an outer surface '. permanently attached to the sheet support ring for forming the cover and an interior surface configured to engage with the container flange to close the opening in the product storage region and set; a sealed connection between the membrane sheet and the flange of the container lid when the support ring; The lid sheet is coupled to the rim of the container so that any product stored in the product storage region is retained in a pellet chamber defined by the container and lid.

2. A package, characterized in that it comprises a container formed to include a product storage region and a flange bordering an opening in the product storage region and a lid adapted to engage with the rim of the container to close the opening in the product storage region formed in the container, the lid including a sheet support ring and one; membrane sheet and wherein the sheet support ring is configured to engage with the container flange, when the cover is mounted on the container to extend around the opening in the product storage region and to include a facing wall towards inside arranged to face towards the flange of the container and the membrane sheet has an outer surface "" permanently attached to the sheet support ring for strengthening the cover and an interior surface configured to engage with the container flange to close the container. opening in the product storage region and establishing a sealed connection between the membrane sheet and the rim of the container lid when the supporting ring of the lid sheet engages the rim of the container So that any product stored in the region, product storage is retained in a sealed chamber defined by the container and the cap, wherein the membrane sheet includes a perimeter edge arranged to extend between the outer and inner surfaces and to engage an annular edge support surface included in the sheet support ring and arranged to face away from the storage region of product of the container.

3. The package according to claim 2, characterized in that the support surface of. Ring edge has a frusto-conical shape.

4. A package, characterized in that it comprises a container formed to include a product storage region and a flange that skirts; an opening in the product storage region and a lid adapted to engage with the rim of the container to close the opening in the: product storage region formed in the container, the lid including a sheet support ring and a membrane sheet and wherein the support ring the sheet is configured to mate with the flange of the container '; when the lid is mounted on the container to extend around the opening in the storage region of product and to include an inward facing wall arranged to face toward the container flange and the membrane sheet has an outer surface permanently attached to the sheet support ring to form the cover and an inner surface configured to engage with the flange of the cover. container for closing the opening in the product storage region and establishing a sealed connection between the membrane sheet and the flange of the container lid when the lid support ring of the lid is acpluded with the flange of the container so that any product stored in the product storage region is retained in a sealed chamber defined by the container and cover where the membrane sheet includes a perimeter edge arranged to extend between the outer and inner surface and to engage with a surface edge supportannular included in the sheet support ring and wherein the perimetral edge of the membrane sheet is permanently attached to the annular edge support surface of the sheet support ring.

5. The package according to claim 4, characterized in that the support ring: -lamina includes an outer surface facing away from the rim of the container and an inner surface facing towards the rim of the container and located between the surface exterior and the flange of the container: and wherein the interior surface includes the facing wall inwardly and the annular edge support surface.

6. The package according to claim 2, characterized in that the wall facing inwardly has a concave shape.

7. A package, characterized in that it comprises a container formed to include a product storage region and a flange bordering an opening in the product storage region and a lid adapted to engage with the rim of the container for closing the opening in the product storage region formed in the container, the lid including a sheet support ring and a membrane sheet and wherein the sheet support ring is configured to mate with the container flange "When the lid is mounted on the container to extend around the opening in the product storage region and to include an inward facing wall arranged to face the container flange and the sheet The membrane has an outer surface permanently attached to the sheet support ring to form the cover and an inner surface configured to engage the container flange to close the opening in the product storage region and establish a connection. sealed between the membrane sheet and the flange of the container lid when the support ring of the The lid mine engages the container flange so that any product stored in the product storage region is retained in a sealed chamber defined by the container and lid, wherein the membrane sheet includes a perimeter edge arranged for extending between the outer and inner surface and for coupling with an annular edge support surface included in the sheet support ring and wherein the outer surface of the membrane sheet includes a central portion arranged to be above the opening in the product storage region and engaging an upwardly facing surface of the flange when the lid is mounted on the container;;;Y. an endless portion coupled and arranged to encircle the central portion and end at the perimeter edge and in • where the endless portion of the outer surface 'of the membrane sheet has a shape which is convex in cross section and is arranged to engage with the wall facing inwardly and the sheet support ring and with a radially facing surface;::; outwardly from the flange.

8. The package according to claim 7, characterized in that the central portion is round;;; and the endless portion is in the form of a ring.

9. The package according to claim 7, characterized in that the wall facing inwardly of the sheet support ring has an annular and concave shape and is formed to define an annular inner channel an annular inner channel opening towards the rim of the container and which receives the endless portion of the outer surface of the membrane sheet therein, wherein the endless portion of the outer surface of the membrane sheet engages the wall facing inwardly of the sheet support ring.

10. The package according to claim 7, characterized in that the sheet support ring includes an upper surface arranged to be above the container rim when the seir lid mounts over the container and the outer surface of the central portion is arranged to be in a space provided between the upper surface and the wall 1 facing inward from the support ring of iámiráv

11. The package according to claim 7, characterized in that the support ring: Alamina includes an annular band having a surface; top and an annular lid retaining lug attached to the annular strip below the upper surface and arranged to be below the rim of the container when the; The lid is mounted on the container to provide a 'media' for trapping a section of the membrane sheet between the annular lid retaining lip of the container rim1 to block the removal of the cap from a portion mounted on the container and where the central portion of the outer surface of the membrane sheet lies below the upper surface of the annular band and above the annular lid retaining lug.;;

12. A package, characterized in that it comprises; a container formed to include a product storage region and a flange bordering an opening in the product storage region and j a lid adapted to engage with the rim of the container to close the opening in the product storage region formed in the container, the lid > which includes a foil support ring and a membrane foil and wherein the foil support ring is configured to engage with the container flange-when the cover is mounted on the container to extend around the container. opening in the product storage region and to include a wall facing inwardly arranged to face towards the rim of the container and the membrane sheet having an outer surface, permanently attached to the sheet support ring for; 'form the lid and an interior surface configured for coupling | with the rim of the container to close the opening > in the product storage region and there is a sealed connection between the membrane sheet and the flange of the container lid when the lid support ring of the lid engages with the container flange so that any product stored in the product storage region is retained in a sealed chamber defined by the container and the lid, wherein the sheet support ring includes an annular band having an upper surface and a bottom surface and a lug. annular stage retention attached to the annular band and arranged to extend in a radially inward direction to meet below the rim of the container when the cap is mounted on the container to provide a means for trapping a section of the membrane sheet between the lug of the annular lid retention and the flange of the container to block the removal of the lid from a position mounted on the container and in wherein the annular rim bearing surface is formed in the annular stage retaining lug. i

13. The package according to claim 12, characterized in that the annular band is formed to include an inward facing wall formed to define an ariular inner channel and permanently engage with the outer surface of the membrane sheet when the perimeter edge of the lamina membrane t is "engaged" with the annular edge support surface of the sheet support ring.

14. The package according to claim 13, characterized in that the wall facing inwardly is in the form of a ring and arched around a circumference thereof in a direction radially outwardly away from a vertical central axis passing through the lid. and the container.

15. The package according to claim 13, characterized in that the annular edge support surface has a frusto-conical shape.

16. The package in accordance with the claim 1, characterized in that the membrane sheet is a multilayer component comprising an outer bed that provides the outer surface that is permanently attached to the wall facing inwardly of the ring; sheet support, an inner bed that provides the interior surface and that engages with the perimeter portion; facing radially outwardly from the flange, and a core interposed between and engaged in the outer and inner beds; ly e, 'where each of the outer bed, core and bed- interior: se; makes a different material. | - ™ i

17. A package, characterized in that it comprises a container formed to include a product storage region and a flange that skirts an opening in the product storage region and:; a lid adapted to engage with the rim of the container for closing the opening in the product storage region formed in the container, the lid including a sheet support ring and a membrane sheet and wherein the sheet support ring it is configured to mate with the flange of the container; when the lid is mounted on the container to extend around the opening in the product storage region and to include an inward facing wall arranged to face towards the container rim and the membrane sheet has an outer surface permanently engaged with the ring of sheet support to form the lid and an interior surface configured to engage with the rim of the container to close the opening "in the product storage region and establish a sealed connection between the membrane sheet and the lid rim of container when the supporting ring of the cover sheet engages with the container rim so that any product stored in the product storage region is retained in a sealed chamber defined by the container and the container. cap, wherein the membrane sheet is a multi-layer component comprising an outer bed providing the surface exterior surface;, an inner bed that provides the interior surface ^: and a core interposed between and coupled to the outer and inner beds and where each of the outer bed and inner bed is made of a different material and where the sheet Membrane includes a central plate arranged to engage the container flange and close the opening in the product storage region when the lid is mounted on the container and an outer edge coupled and arranged to extend around the central plate, the edge The exterior has a curved shape, the outer surface of the outer bed has a convex shape and the inner surface of the inner bed has a concave shape.

18. The package according to claim 17, characterized in that the central plate is round and the edge is in the form of a ring.

19. The package according to claim 17, characterized in that the sheet support ring includes an annular band having an upper surface and an annular cap retaining tab attached to the annular band to be below the upper surface and arranged to be below the rim of the container when the lid is mounted on the container to provide a means for trapping a section of the membrane sheet between the annular lid retaining lug and the rim of the container to block removal of the lid; of a portion mounted on the container and wherein the outer surface of the central plate is located below the upper surface of the annular band and above: the annular cap retaining tab.

20. A package, characterized in that it comprises a container formed to include a product storage region and a flange bordering an opening in the product storage region and - a cover adapted to engage with the container flange to close the opening in the region of product storage formed in the container, the lid including a sheet support ring and a membrane sheet and wherein the sheet support ring is configured to engage with the container flange: when the cover is mounted on the container container to extend-around the opening in the product storage region and to include, an inward facing wall arranged to face towards the container rim and the membrane sheet has an outer surface permanently engaged to the sheet support ring for forming the lid and an interior surface configured to mate with the rim of the container for to close the aperture: 'in the region of product storage and establish; a sealed connection between the membrane sheet and the flange of the container lid when the support ring of the lid engages with the container flange so that any. The product stored in the product storage region is retained in a sealed chamber defined by the container and lid, wherein the membrane sheet is a multi-layer component comprising an outer bed providing an outer surface, an inner bed providing the inner surface, and a core interposed between and coupled to the outer and inner beds and wherein each of the outer bed, core and inner bed is made of a different material and wherein the membrane sheet includes a central plate arranged to be coupled by the rim of the container and closing the opening in the product storage region when the lid is mounted on the container and an outer edge coupled and arranged to extend around the central plate and the outer edge is a multi-layer component comprising a outer bed that provides a portion: of the outer surface, an inner bed that provides one per of the inner surface, and a core interposed between and coupled in the outer and inner beds, where each of the outer bed, core and inner bed-is made of a different material.

21. The package according to claim 20, characterized in that the sheet support ring includes an annular band having a surface; outer and an annular lid retaining lug attached to the annular band and arranged to be below the rim of the container when the lid is mounted on the container to provide a means for trapping the outer edge of the membrane sheet between the retaining lug of the annular lid and the flange of the container to block the removal of the cover from the position mounted on the container and to establish the sealed connection between the membrane sheet and the container flange.

22. A package, characterized in that it comprises a container formed to include a product storage region and a flange bordering an opening in the product storage region and a lid adapted to engage with the rim of the container to close the opening of the product storage region formed in the container, wherein the cap includes a vessel-shaped membrane sheet having a substantially planar central plate and a bank engaged and arranged to extend around a peripheral portion of the substantially flat central plate to form a single downwardly opening recess attached by the shore and the plate. substantially flat central, wherein the cap further includes a sheet support ring arranged to enclose the rim of the container when the cap is mounted on the container "'and to permanently attach to an outer surface of the edge of the membrane sheet in the form of a glass for placing the downwardly opening opening cavity formed in the cup-shaped membrane sheet in communication with the product storage region formed in the container when the lid engages with the rim of the container and wherein the edge of the membrane sheet further includes an interior surface configured to engage with the container rim to establish a sealed connection between the membrane sheet and the rim and position the central plate to close the opening of the storage region of the container. product and to place the peripheral portion of the central plate above and in mating relation with a confronting surface facing upwardly of the flange of the container with the support ring while the sheet support ring engages with the flange.

23. The package according to claim 22, characterized in that the edge of the membrane sheet is a multi-layer component e comprising a. outer bed providing portion of the outer surface, an inner bed providing a portion of the inner surface, and a core interposed between and coupled to the inner and outer beds, and wherein each of the outer bed, core and inner bed is makes a different material.

24. The package according to claim 22, characterized in that the outer surface of the outer bed has a convex shape and the inner surface of the inner bed has a concave shape.

25. The package according to claim 22, characterized in that the membrane sheet includes a perimeter edge arranged to extend between the outer and inner surfaces and to engage with an annular edge support surface included in the sheet support ring.

26. The package in accordance with the claim 25, characterized in that the annular edge support surface has a frusto-conical shape.;;

27. The package according to claim 25, characterized in that the perimetral edge of the membrane sheet is permanently attached to the annular edge support surface of the ring of the sheet holder.;::

28. The package according to claim 27, characterized in that the support ring of the sheet includes an outer surface facing away from the edge of the container and an inner surface facing towards the flange of the container on the surface. outer and the flange of the container and wherein the inner surface includes the opposite facing wall: and the annular edge supporting surface. : -

29. The package according to claim 28, characterized in that the wall facing inwardly has a concave shape.

30. The package according to claim 22, characterized in that the sheet support ring includes an annular band having an upper surface and a bottom surface and an annular lid retaining tab attached to the annular band and arranged to extend to an annular band. direction radially inward to lie below the rim of the container when the lid is "mounted" on the container to provide a means for trapping the edge of the membrane sheet between the annular lid retaining lug and the rim of the container. e! to block the removal of the lid from a wedge position on the container.!!;!

31. The package according to claim 22, characterized in that the membrane sheet is a multilayer component comprising an outer bed providing the outer surface, an inner bed providing the inner surface, and a core interposed between and coupled to the outer and inner beds and éi¾ 'where each of the outer bed, core and inner bed s! e !;; They make a different material. ! ' "\ Z \

32. A package, characterized in that it comprises; a container that includes a flange and formed; to include an opening in an interior product storage region of the container, the defined opening, by the rim and a cap including a foil support ring and a membrane foil, the foil support ring which is configured to engage with the container flange, the foil membrane which is attached to the foil support ring at a perimeter edge thereof and arranged to encompass through the container opening when the lid engages the container, the membrane sheet comprising multiple layers including at least one outer bed configured to permanently bond with the sheet support ring and a Removable inner bed configured to establish a fluid seal between the lid and a perimeter portion facing radially outwardly of the container rim.

33. The package in accordance with the claim 32, characterized in that the membrane sheet comprises a core layer interposed between and coupled to the outer bed and the inner bed of the membrane sheet.

3 . The package in accordance with the claim 33, characterized in that the inner bed includes metallized low density polyethylene, polypropylene based sealant, polypropylene and polybutene mixtures, as well as E A-EVA based sealants.

35. A package, characterized in that it comprises a container formed to include a product storage region and a flange bordering an opening in the product storage region and a lid adapted to engage with the rim of the container for closing the opening in the product storage region formed in the container, the lid including a sheet support ring and a membrane sheet and wherein the sheet support ring is configured to mate with the flange of the container when the lid retraces over the container to extend around the opening in the product storage region and to include a wall facing toward, inside arranged to face towards the container flange and the membrane sheet has an outer surface permanently attached to the wall facing inwardly of the sheet support ring to be in a stationary position on the sheet support ring to form the cover and an interior surface configured to engage with a facing perimeter portion radially outward from the container flange to close the opening in the product storage region and establish a sealed connection between the membrane sheet and the flange of the container lid when the support ring of. The lid sheet engages with the rim of the container so that any product stored in the product storage region is retained in a sealed chamber defined by the container and lid.

36. A package, characterized in that it comprises a container formed to include a product storage region and a flange bordering an opening in the product storage region and / a lid adapted to engage with the rim of the container for closing the opening in the product storage region formed in the container, the lid including a sheet support ring and a membrane sheet and wherein the sheet support ring is configured to engage with the container flange when the lid is mounted on the container to extend around the opening in the product storage region and to include an inward facing wall arranged to face towards the container flange and the sheet The membrane has an outer surface permanently attached to the wall facing inwardly of the sheet support ring to be in a stationary position on the sheet support ring: to form the cover and an inner surface of a mating material in a perimeter portion facing radially outwardly of the container flange to close the opening in the product storage region and establishing a sealed connection between the membrane sheet and the rim of the container lid when the lid support ring of the lid engages the rim of the container so that any liquid product stored in the container. The product storage region is retained in a sealed chamber defined by the container and lid.